1994 Chevrolet Corvette Owner's Manual - Page 237

Maintenance Schedule L C Section A: Scheduled Maintenance Services (Cont.) ITEM Explanation of Scheduled NO. SERVICE Maintenance Services Following are explanations of the services listed in Schedule I and Schedule 11. The proper fluids and lubricants to use are listed in Section D. Make sure whoever services your vehicle uses these. All parts should be replaced and all necessary repairs done before youor anyone else drives the vehicle. NOTE: To determine your engine's displacement and code, see "Engine Identification" in the Index. ITEM NO. SERVICE 1 EngineOiland Filter Change* Always use SH or SG Energy Conserving I1 oils of proper viscosity. The engine requires a special oil meeting GM Standard GM4718M. Oils meeting this Standard may be identified as synthetic, and shouldalso be identified as API Service SH or SG. However, notall Synthetic API Service SH oils will meet this GM Standard. You should look for and use only an oil that meets GM Standard GM4718M. To determine the preferred viscosity for your vehicle's engine (e.g., SAE 5W-30 or SAE 10W-30), see "Engine Oil" in the Index. Your vehicle has an Engine Oil Life Monitor. This monitor will show you whento change the oil - usually between 3,000 miles ( 5 000 km) and 7,500 miles ( 12 500 km) since your last oil change. Under severe conditions the indicator may come on before 3,000 miles ( 5 000 km). Never drive your vehicle more than 7,500 miles (12 500 km) or 12 months without an oil change. The system won't detect dust in the oil..So if you drive in a dusty area be sure to change your oil every 3,000 miles ( 5 000 km) or sooner if the "Change Oil" light comes on. ITEM NO. SERVICE Remember to reset the Oil Life Monitor when the oil has been changed. For more information, see "Engine Oil Life Monitor" in the Index. 2 Chassis Lubrication - Lubricate suspension and steering linkage. Lubricate the transmission shift linkage, and parking brake cable guides, underbody contact points and linkage. 3 Engine Accessory Drive Belt(s) Inspection - Inspect the belt(s) for cracks, fraying, wear and proper tension. Replace as needed. (Belts can have many small cracks in individual ribs without affecting performance.) 4 Cooling System Service*Drain, flush and refill the system with new or approved recycled coolant conforming toGM Specification 1825M. Keep coolant at the proper mixture as specified. See "Coolant" in the * An Emission Control Service. ...236